I purposely left this out to avoid confusion for new players. I was going to create an 'unsubmit' button in case folks ran into problems, but I held off as it wasn't all that important at the time. I don't have any immediate plans to add it either. The submit character button is pretty big and it's kind of hard to click it by accident and I've allowed for a full review before allowing submission anyway.

The greatest enemy to propaganda or even counter-propaganda is open, unadulterated channels of free opinion.